Home / 287,330.20-430,412.10-162,525.40

Finding the Fourth Proportional to 287,330.20, 430,412.10 and 162,525.40

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Solution

The fourth proportional to 287,330.20, 430,412.10 and 162,525.40 is: 243,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,330.20 : 430,412.10 = 162,525.40 : x
  2. Step 2: Convert to fraction form
    287,330.20/430,412.10 = 162,525.40/x
  3. Step 3: Cross multiply
    287,330.20x = 430,412.10 × 162,525.40
  4. Step 4: Simplify right side
    287,330.20x = 69,952,898,717.34
  5. Step 5: Solve for x
    x = 69,952,898,717.34/287,330.20
  6. Step 6: Final answer
    x = 243,458.22

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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.