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Finding the Fourth Proportional to 180,859.56, 249,598.98 and 100,294.80

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Solution

The fourth proportional to 180,859.56, 249,598.98 and 100,294.80 is: 138,413.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,859.56 : 249,598.98 = 100,294.80 : x
  2. Step 2: Convert to fraction form
    180,859.56/249,598.98 = 100,294.80/x
  3. Step 3: Cross multiply
    180,859.56x = 249,598.98 × 100,294.80
  4. Step 4: Simplify right side
    180,859.56x = 25,033,479,779.30
  5. Step 5: Solve for x
    x = 25,033,479,779.30/180,859.56
  6. Step 6: Final answer
    x = 138,413.92

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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.