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Finding the Fourth Proportional to 315,127.56, 472,901.40 and 163,464.42

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Solution

The fourth proportional to 315,127.56, 472,901.40 and 163,464.42 is: 245,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,127.56 : 472,901.40 = 163,464.42 : x
  2. Step 2: Convert to fraction form
    315,127.56/472,901.40 = 163,464.42/x
  3. Step 3: Cross multiply
    315,127.56x = 472,901.40 × 163,464.42
  4. Step 4: Simplify right side
    315,127.56x = 77,302,553,068.19
  5. Step 5: Solve for x
    x = 77,302,553,068.19/315,127.56
  6. Step 6: Final answer
    x = 245,305.59

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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.