Home / 315,280.60-435,079.02-172,042.36

Finding the Fourth Proportional to 315,280.60, 435,079.02 and 172,042.36

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Solution

The fourth proportional to 315,280.60, 435,079.02 and 172,042.36 is: 237,413.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,280.60 : 435,079.02 = 172,042.36 : x
  2. Step 2: Convert to fraction form
    315,280.60/435,079.02 = 172,042.36/x
  3. Step 3: Cross multiply
    315,280.60x = 435,079.02 × 172,042.36
  4. Step 4: Simplify right side
    315,280.60x = 74,852,021,387.29
  5. Step 5: Solve for x
    x = 74,852,021,387.29/315,280.60
  6. Step 6: Final answer
    x = 237,413.98

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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.