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Finding the Fourth Proportional to 238,752.50, 358,069.20 and 70,239.28

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Solution

The fourth proportional to 238,752.50, 358,069.20 and 70,239.28 is: 105,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,752.50 : 358,069.20 = 70,239.28 : x
  2. Step 2: Convert to fraction form
    238,752.50/358,069.20 = 70,239.28/x
  3. Step 3: Cross multiply
    238,752.50x = 358,069.20 × 70,239.28
  4. Step 4: Simplify right side
    238,752.50x = 25,150,522,798.18
  5. Step 5: Solve for x
    x = 25,150,522,798.18/238,752.50
  6. Step 6: Final answer
    x = 105,341.40

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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.