Home / 208,697.08-288,047.46-128,166.88

Finding the Fourth Proportional to 208,697.08, 288,047.46 and 128,166.88

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Solution

The fourth proportional to 208,697.08, 288,047.46 and 128,166.88 is: 176,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,697.08 : 288,047.46 = 128,166.88 : x
  2. Step 2: Convert to fraction form
    208,697.08/288,047.46 = 128,166.88/x
  3. Step 3: Cross multiply
    208,697.08x = 288,047.46 × 128,166.88
  4. Step 4: Simplify right side
    208,697.08x = 36,918,144,240.12
  5. Step 5: Solve for x
    x = 36,918,144,240.12/208,697.08
  6. Step 6: Final answer
    x = 176,898.23

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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.