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Finding the Fourth Proportional to 282,048.89, 389,225.20 and 152,987.04

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Solution

The fourth proportional to 282,048.89, 389,225.20 and 152,987.04 is: 211,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,048.89 : 389,225.20 = 152,987.04 : x
  2. Step 2: Convert to fraction form
    282,048.89/389,225.20 = 152,987.04/x
  3. Step 3: Cross multiply
    282,048.89x = 389,225.20 × 152,987.04
  4. Step 4: Simplify right side
    282,048.89x = 59,546,411,241.41
  5. Step 5: Solve for x
    x = 59,546,411,241.41/282,048.89
  6. Step 6: Final answer
    x = 211,120.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.