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Finding the Fourth Proportional to 180,477.52, 249,064.88 and 103,990.70

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Solution

The fourth proportional to 180,477.52, 249,064.88 and 103,990.70 is: 143,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,477.52 : 249,064.88 = 103,990.70 : x
  2. Step 2: Convert to fraction form
    180,477.52/249,064.88 = 103,990.70/x
  3. Step 3: Cross multiply
    180,477.52x = 249,064.88 × 103,990.70
  4. Step 4: Simplify right side
    180,477.52x = 25,900,431,319.32
  5. Step 5: Solve for x
    x = 25,900,431,319.32/180,477.52
  6. Step 6: Final answer
    x = 143,510.57

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1.5x scale

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.