Home / 282,747.60-390,185.20-153,683.04

Finding the Fourth Proportional to 282,747.60, 390,185.20 and 153,683.04

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Solution

The fourth proportional to 282,747.60, 390,185.20 and 153,683.04 is: 212,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,747.60 : 390,185.20 = 153,683.04 : x
  2. Step 2: Convert to fraction form
    282,747.60/390,185.20 = 153,683.04/x
  3. Step 3: Cross multiply
    282,747.60x = 390,185.20 × 153,683.04
  4. Step 4: Simplify right side
    282,747.60x = 59,964,847,699.01
  5. Step 5: Solve for x
    x = 59,964,847,699.01/282,747.60
  6. Step 6: Final answer
    x = 212,079.07

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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.