Home / 215,689.64-297,566.80-144,116.40

Finding the Fourth Proportional to 215,689.64, 297,566.80 and 144,116.40

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Solution

The fourth proportional to 215,689.64, 297,566.80 and 144,116.40 is: 198,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,689.64 : 297,566.80 = 144,116.40 : x
  2. Step 2: Convert to fraction form
    215,689.64/297,566.80 = 144,116.40/x
  3. Step 3: Cross multiply
    215,689.64x = 297,566.80 × 144,116.40
  4. Step 4: Simplify right side
    215,689.64x = 42,884,255,975.52
  5. Step 5: Solve for x
    x = 42,884,255,975.52/215,689.64
  6. Step 6: Final answer
    x = 198,823.90

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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.