Home / 287,069.28-430,478.40-144,827.04

Finding the Fourth Proportional to 287,069.28, 430,478.40 and 144,827.04

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Solution

The fourth proportional to 287,069.28, 430,478.40 and 144,827.04 is: 217,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,069.28 : 430,478.40 = 144,827.04 : x
  2. Step 2: Convert to fraction form
    287,069.28/430,478.40 = 144,827.04/x
  3. Step 3: Cross multiply
    287,069.28x = 430,478.40 × 144,827.04
  4. Step 4: Simplify right side
    287,069.28x = 62,344,912,455.94
  5. Step 5: Solve for x
    x = 62,344,912,455.94/287,069.28
  6. Step 6: Final answer
    x = 217,177.23

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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.