Home / 282,909.31-390,407.04-155,585.00

Finding the Fourth Proportional to 282,909.31, 390,407.04 and 155,585.00

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Solution

The fourth proportional to 282,909.31, 390,407.04 and 155,585.00 is: 214,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,909.31 : 390,407.04 = 155,585.00 : x
  2. Step 2: Convert to fraction form
    282,909.31/390,407.04 = 155,585.00/x
  3. Step 3: Cross multiply
    282,909.31x = 390,407.04 × 155,585.00
  4. Step 4: Simplify right side
    282,909.31x = 60,741,480,294.42
  5. Step 5: Solve for x
    x = 60,741,480,294.42/282,909.31
  6. Step 6: Final answer
    x = 214,703.01

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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.