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Finding the Fourth Proportional to 242,641.80, 363,962.70 and 208,816.20

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Solution

The fourth proportional to 242,641.80, 363,962.70 and 208,816.20 is: 313,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,641.80 : 363,962.70 = 208,816.20 : x
  2. Step 2: Convert to fraction form
    242,641.80/363,962.70 = 208,816.20/x
  3. Step 3: Cross multiply
    242,641.80x = 363,962.70 × 208,816.20
  4. Step 4: Simplify right side
    242,641.80x = 76,001,307,955.74
  5. Step 5: Solve for x
    x = 76,001,307,955.74/242,641.80
  6. Step 6: Final answer
    x = 313,224.30

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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.