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Finding the Fourth Proportional to 308,531.20, 463,225.08 and 158,878.40

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Solution

The fourth proportional to 308,531.20, 463,225.08 and 158,878.40 is: 238,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,531.20 : 463,225.08 = 158,878.40 : x
  2. Step 2: Convert to fraction form
    308,531.20/463,225.08 = 158,878.40/x
  3. Step 3: Cross multiply
    308,531.20x = 463,225.08 × 158,878.40
  4. Step 4: Simplify right side
    308,531.20x = 73,596,459,550.27
  5. Step 5: Solve for x
    x = 73,596,459,550.27/308,531.20
  6. Step 6: Final answer
    x = 238,538.14

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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.