Home / 219,030.30-328,521.15-61,274.70

Finding the Fourth Proportional to 219,030.30, 328,521.15 and 61,274.70

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Solution

The fourth proportional to 219,030.30, 328,521.15 and 61,274.70 is: 91,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,030.30 : 328,521.15 = 61,274.70 : x
  2. Step 2: Convert to fraction form
    219,030.30/328,521.15 = 61,274.70/x
  3. Step 3: Cross multiply
    219,030.30x = 328,521.15 × 61,274.70
  4. Step 4: Simplify right side
    219,030.30x = 20,130,034,909.91
  5. Step 5: Solve for x
    x = 20,130,034,909.91/219,030.30
  6. Step 6: Final answer
    x = 91,905.25

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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.