Home / 246,485.17-340,356.90-156,000.78

Finding the Fourth Proportional to 246,485.17, 340,356.90 and 156,000.78

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Solution

The fourth proportional to 246,485.17, 340,356.90 and 156,000.78 is: 215,412.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,485.17 : 340,356.90 = 156,000.78 : x
  2. Step 2: Convert to fraction form
    246,485.17/340,356.90 = 156,000.78/x
  3. Step 3: Cross multiply
    246,485.17x = 340,356.90 × 156,000.78
  4. Step 4: Simplify right side
    246,485.17x = 53,095,942,463.38
  5. Step 5: Solve for x
    x = 53,095,942,463.38/246,485.17
  6. Step 6: Final answer
    x = 215,412.32

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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.