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Finding the Fourth Proportional to 238,776.72, 358,041.81 and 70,275.15

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Solution

The fourth proportional to 238,776.72, 358,041.81 and 70,275.15 is: 105,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,776.72 : 358,041.81 = 70,275.15 : x
  2. Step 2: Convert to fraction form
    238,776.72/358,041.81 = 70,275.15/x
  3. Step 3: Cross multiply
    238,776.72x = 358,041.81 × 70,275.15
  4. Step 4: Simplify right side
    238,776.72x = 25,161,442,983.15
  5. Step 5: Solve for x
    x = 25,161,442,983.15/238,776.72
  6. Step 6: Final answer
    x = 105,376.45

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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.