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Finding the Fourth Proportional to 180,618.67, 249,017.43 and 155,395.95

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Solution

The fourth proportional to 180,618.67, 249,017.43 and 155,395.95 is: 214,243.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,618.67 : 249,017.43 = 155,395.95 : x
  2. Step 2: Convert to fraction form
    180,618.67/249,017.43 = 155,395.95/x
  3. Step 3: Cross multiply
    180,618.67x = 249,017.43 × 155,395.95
  4. Step 4: Simplify right side
    180,618.67x = 38,696,300,101.41
  5. Step 5: Solve for x
    x = 38,696,300,101.41/180,618.67
  6. Step 6: Final answer
    x = 214,243.08

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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.