Home / 317,628.47-438,328.15-174,397.79

Finding the Fourth Proportional to 317,628.47, 438,328.15 and 174,397.79

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Solution

The fourth proportional to 317,628.47, 438,328.15 and 174,397.79 is: 240,669.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,628.47 : 438,328.15 = 174,397.79 : x
  2. Step 2: Convert to fraction form
    317,628.47/438,328.15 = 174,397.79/x
  3. Step 3: Cross multiply
    317,628.47x = 438,328.15 × 174,397.79
  4. Step 4: Simplify right side
    317,628.47x = 76,443,460,654.79
  5. Step 5: Solve for x
    x = 76,443,460,654.79/317,628.47
  6. Step 6: Final answer
    x = 240,669.42

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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.