Home / 315,264.15-435,070.85-172,030.23

Finding the Fourth Proportional to 315,264.15, 435,070.85 and 172,030.23

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Solution

The fourth proportional to 315,264.15, 435,070.85 and 172,030.23 is: 237,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,264.15 : 435,070.85 = 172,030.23 : x
  2. Step 2: Convert to fraction form
    315,264.15/435,070.85 = 172,030.23/x
  3. Step 3: Cross multiply
    315,264.15x = 435,070.85 × 172,030.23
  4. Step 4: Simplify right side
    315,264.15x = 74,845,337,531.64
  5. Step 5: Solve for x
    x = 74,845,337,531.64/315,264.15
  6. Step 6: Final answer
    x = 237,405.16

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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.