Home / 287,257.04-430,936.89-97,707.72

Finding the Fourth Proportional to 287,257.04, 430,936.89 and 97,707.72

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Solution

The fourth proportional to 287,257.04, 430,936.89 and 97,707.72 is: 146,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,257.04 : 430,936.89 = 97,707.72 : x
  2. Step 2: Convert to fraction form
    287,257.04/430,936.89 = 97,707.72/x
  3. Step 3: Cross multiply
    287,257.04x = 430,936.89 × 97,707.72
  4. Step 4: Simplify right side
    287,257.04x = 42,105,860,985.79
  5. Step 5: Solve for x
    x = 42,105,860,985.79/287,257.04
  6. Step 6: Final answer
    x = 146,579.04

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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.