Home / 282,699.63-390,118.92-153,635.04

Finding the Fourth Proportional to 282,699.63, 390,118.92 and 153,635.04

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Solution

The fourth proportional to 282,699.63, 390,118.92 and 153,635.04 is: 212,012.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,699.63 : 390,118.92 = 153,635.04 : x
  2. Step 2: Convert to fraction form
    282,699.63/390,118.92 = 153,635.04/x
  3. Step 3: Cross multiply
    282,699.63x = 390,118.92 × 153,635.04
  4. Step 4: Simplify right side
    282,699.63x = 59,935,935,302.83
  5. Step 5: Solve for x
    x = 59,935,935,302.83/282,699.63
  6. Step 6: Final answer
    x = 212,012.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.