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Finding the Fourth Proportional to 199,552.80, 299,329.20 and 66,437.40

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Solution

The fourth proportional to 199,552.80, 299,329.20 and 66,437.40 is: 99,656.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,552.80 : 299,329.20 = 66,437.40 : x
  2. Step 2: Convert to fraction form
    199,552.80/299,329.20 = 66,437.40/x
  3. Step 3: Cross multiply
    199,552.80x = 299,329.20 × 66,437.40
  4. Step 4: Simplify right side
    199,552.80x = 19,886,653,792.08
  5. Step 5: Solve for x
    x = 19,886,653,792.08/199,552.80
  6. Step 6: Final answer
    x = 99,656.10

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1.5x scale

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.