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Finding the Fourth Proportional to 508,686.80, 763,030.20 and 176,296.40

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Solution

The fourth proportional to 508,686.80, 763,030.20 and 176,296.40 is: 264,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,686.80 : 763,030.20 = 176,296.40 : x
  2. Step 2: Convert to fraction form
    508,686.80/763,030.20 = 176,296.40/x
  3. Step 3: Cross multiply
    508,686.80x = 763,030.20 × 176,296.40
  4. Step 4: Simplify right side
    508,686.80x = 134,519,477,351.28
  5. Step 5: Solve for x
    x = 134,519,477,351.28/508,686.80
  6. Step 6: Final answer
    x = 264,444.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.