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Finding the Fourth Proportional to 318,145.60, 439,041.20 and 174,908.08

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Solution

The fourth proportional to 318,145.60, 439,041.20 and 174,908.08 is: 241,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,145.60 : 439,041.20 = 174,908.08 : x
  2. Step 2: Convert to fraction form
    318,145.60/439,041.20 = 174,908.08/x
  3. Step 3: Cross multiply
    318,145.60x = 439,041.20 × 174,908.08
  4. Step 4: Simplify right side
    318,145.60x = 76,791,853,332.90
  5. Step 5: Solve for x
    x = 76,791,853,332.90/318,145.60
  6. Step 6: Final answer
    x = 241,373.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.