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Finding the Fourth Proportional to 249,124, 373,707.06 and 78,384.88

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Solution

The fourth proportional to 249,124, 373,707.06 and 78,384.88 is: 117,583.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,124 : 373,707.06 = 78,384.88 : x
  2. Step 2: Convert to fraction form
    249,124/373,707.06 = 78,384.88/x
  3. Step 3: Cross multiply
    249,124x = 373,707.06 × 78,384.88
  4. Step 4: Simplify right side
    249,124x = 29,292,983,053.25
  5. Step 5: Solve for x
    x = 29,292,983,053.25/249,124
  6. Step 6: Final answer
    x = 117,583.95

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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.