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Finding the Fourth Proportional to 460,970.50, 636,139.29 and 249,002.50

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Solution

The fourth proportional to 460,970.50, 636,139.29 and 249,002.50 is: 343,623.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,970.50 : 636,139.29 = 249,002.50 : x
  2. Step 2: Convert to fraction form
    460,970.50/636,139.29 = 249,002.50/x
  3. Step 3: Cross multiply
    460,970.50x = 636,139.29 × 249,002.50
  4. Step 4: Simplify right side
    460,970.50x = 158,400,273,558.23
  5. Step 5: Solve for x
    x = 158,400,273,558.23/460,970.50
  6. Step 6: Final answer
    x = 343,623.45

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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.