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Finding the Fourth Proportional to 315,798.28, 472,848.56 and 240,560

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Solution

The fourth proportional to 315,798.28, 472,848.56 and 240,560 is: 360,193.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,798.28 : 472,848.56 = 240,560 : x
  2. Step 2: Convert to fraction form
    315,798.28/472,848.56 = 240,560/x
  3. Step 3: Cross multiply
    315,798.28x = 472,848.56 × 240,560
  4. Step 4: Simplify right side
    315,798.28x = 113,748,449,593.60
  5. Step 5: Solve for x
    x = 113,748,449,593.60/315,798.28
  6. Step 6: Final answer
    x = 360,193.38

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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.