Home / 353,145.24-487,336.80-262,904.76

Finding the Fourth Proportional to 353,145.24, 487,336.80 and 262,904.76

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Solution

The fourth proportional to 353,145.24, 487,336.80 and 262,904.76 is: 362,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,145.24 : 487,336.80 = 262,904.76 : x
  2. Step 2: Convert to fraction form
    353,145.24/487,336.80 = 262,904.76/x
  3. Step 3: Cross multiply
    353,145.24x = 487,336.80 × 262,904.76
  4. Step 4: Simplify right side
    353,145.24x = 128,123,164,443.17
  5. Step 5: Solve for x
    x = 128,123,164,443.17/353,145.24
  6. Step 6: Final answer
    x = 362,805.87

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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.