Home / 497,220.80-745,831.20-142,246.40

Finding the Fourth Proportional to 497,220.80, 745,831.20 and 142,246.40

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Solution

The fourth proportional to 497,220.80, 745,831.20 and 142,246.40 is: 213,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,220.80 : 745,831.20 = 142,246.40 : x
  2. Step 2: Convert to fraction form
    497,220.80/745,831.20 = 142,246.40/x
  3. Step 3: Cross multiply
    497,220.80x = 745,831.20 × 142,246.40
  4. Step 4: Simplify right side
    497,220.80x = 106,091,803,207.68
  5. Step 5: Solve for x
    x = 106,091,803,207.68/497,220.80
  6. Step 6: Final answer
    x = 213,369.60

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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.