Home / 208,728.63-288,045.59-118,082.79

Finding the Fourth Proportional to 208,728.63, 288,045.59 and 118,082.79

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Solution

The fourth proportional to 208,728.63, 288,045.59 and 118,082.79 is: 162,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,728.63 : 288,045.59 = 118,082.79 : x
  2. Step 2: Convert to fraction form
    208,728.63/288,045.59 = 118,082.79/x
  3. Step 3: Cross multiply
    208,728.63x = 288,045.59 × 118,082.79
  4. Step 4: Simplify right side
    208,728.63x = 34,013,226,323.98
  5. Step 5: Solve for x
    x = 34,013,226,323.98/208,728.63
  6. Step 6: Final answer
    x = 162,954.29

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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.