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Finding the Fourth Proportional to 249,980.94, 374,894.16 and 72,501

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Solution

The fourth proportional to 249,980.94, 374,894.16 and 72,501 is: 108,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,980.94 : 374,894.16 = 72,501 : x
  2. Step 2: Convert to fraction form
    249,980.94/374,894.16 = 72,501/x
  3. Step 3: Cross multiply
    249,980.94x = 374,894.16 × 72,501
  4. Step 4: Simplify right side
    249,980.94x = 27,180,201,494.16
  5. Step 5: Solve for x
    x = 27,180,201,494.16/249,980.94
  6. Step 6: Final answer
    x = 108,729.10

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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.