Home / 288,913.31-433,429.08-99,349.06

Finding the Fourth Proportional to 288,913.31, 433,429.08 and 99,349.06

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Solution

The fourth proportional to 288,913.31, 433,429.08 and 99,349.06 is: 149,043.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,913.31 : 433,429.08 = 99,349.06 : x
  2. Step 2: Convert to fraction form
    288,913.31/433,429.08 = 99,349.06/x
  3. Step 3: Cross multiply
    288,913.31x = 433,429.08 × 99,349.06
  4. Step 4: Simplify right side
    288,913.31x = 43,060,769,010.77
  5. Step 5: Solve for x
    x = 43,060,769,010.77/288,913.31
  6. Step 6: Final answer
    x = 149,043.91

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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.