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Finding the Fourth Proportional to 317,459.86, 438,094.71 and 174,220.00

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Solution

The fourth proportional to 317,459.86, 438,094.71 and 174,220.00 is: 240,423.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,459.86 : 438,094.71 = 174,220.00 : x
  2. Step 2: Convert to fraction form
    317,459.86/438,094.71 = 174,220.00/x
  3. Step 3: Cross multiply
    317,459.86x = 438,094.71 × 174,220.00
  4. Step 4: Simplify right side
    317,459.86x = 76,324,859,280.96
  5. Step 5: Solve for x
    x = 76,324,859,280.96/317,459.86
  6. Step 6: Final answer
    x = 240,423.66

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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.