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Finding the Fourth Proportional to 317,404.51, 438,017.02 and 174,166.94

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Solution

The fourth proportional to 317,404.51, 438,017.02 and 174,166.94 is: 240,349.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,404.51 : 438,017.02 = 174,166.94 : x
  2. Step 2: Convert to fraction form
    317,404.51/438,017.02 = 174,166.94/x
  3. Step 3: Cross multiply
    317,404.51x = 438,017.02 × 174,166.94
  4. Step 4: Simplify right side
    317,404.51x = 76,288,084,700.94
  5. Step 5: Solve for x
    x = 76,288,084,700.94/317,404.51
  6. Step 6: Final answer
    x = 240,349.72

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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.