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Finding the Fourth Proportional to 315,244.26, 435,038.52 and 172,007.34

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Solution

The fourth proportional to 315,244.26, 435,038.52 and 172,007.34 is: 237,370.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,244.26 : 435,038.52 = 172,007.34 : x
  2. Step 2: Convert to fraction form
    315,244.26/435,038.52 = 172,007.34/x
  3. Step 3: Cross multiply
    315,244.26x = 435,038.52 × 172,007.34
  4. Step 4: Simplify right side
    315,244.26x = 74,829,818,622.74
  5. Step 5: Solve for x
    x = 74,829,818,622.74/315,244.26
  6. Step 6: Final answer
    x = 237,370.92

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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.