Home / 315,070.30-472,482.60-137,456.20

Finding the Fourth Proportional to 315,070.30, 472,482.60 and 137,456.20

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Solution

The fourth proportional to 315,070.30, 472,482.60 and 137,456.20 is: 206,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,070.30 : 472,482.60 = 137,456.20 : x
  2. Step 2: Convert to fraction form
    315,070.30/472,482.60 = 137,456.20/x
  3. Step 3: Cross multiply
    315,070.30x = 472,482.60 × 137,456.20
  4. Step 4: Simplify right side
    315,070.30x = 64,945,662,762.12
  5. Step 5: Solve for x
    x = 64,945,662,762.12/315,070.30
  6. Step 6: Final answer
    x = 206,130.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.