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Finding the Fourth Proportional to 249,981.94, 374,895.66 and 72,502

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Solution

The fourth proportional to 249,981.94, 374,895.66 and 72,502 is: 108,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,981.94 : 374,895.66 = 72,502 : x
  2. Step 2: Convert to fraction form
    249,981.94/374,895.66 = 72,502/x
  3. Step 3: Cross multiply
    249,981.94x = 374,895.66 × 72,502
  4. Step 4: Simplify right side
    249,981.94x = 27,180,685,141.32
  5. Step 5: Solve for x
    x = 27,180,685,141.32/249,981.94
  6. Step 6: Final answer
    x = 108,730.60

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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.