Home / 287,056.04-430,190.40-181,686.92

Finding the Fourth Proportional to 287,056.04, 430,190.40 and 181,686.92

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Solution

The fourth proportional to 287,056.04, 430,190.40 and 181,686.92 is: 272,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,056.04 : 430,190.40 = 181,686.92 : x
  2. Step 2: Convert to fraction form
    287,056.04/430,190.40 = 181,686.92/x
  3. Step 3: Cross multiply
    287,056.04x = 430,190.40 × 181,686.92
  4. Step 4: Simplify right side
    287,056.04x = 78,159,968,789.57
  5. Step 5: Solve for x
    x = 78,159,968,789.57/287,056.04
  6. Step 6: Final answer
    x = 272,281.22

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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.