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Finding the Fourth Proportional to 359,945.74, 540,018.73 and 157,505.78

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Solution

The fourth proportional to 359,945.74, 540,018.73 and 157,505.78 is: 236,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,945.74 : 540,018.73 = 157,505.78 : x
  2. Step 2: Convert to fraction form
    359,945.74/540,018.73 = 157,505.78/x
  3. Step 3: Cross multiply
    359,945.74x = 540,018.73 × 157,505.78
  4. Step 4: Simplify right side
    359,945.74x = 85,056,071,283.26
  5. Step 5: Solve for x
    x = 85,056,071,283.26/359,945.74
  6. Step 6: Final answer
    x = 236,302.48

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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.