Home / 287,748.37-431,746.91-154,472.99

Finding the Fourth Proportional to 287,748.37, 431,746.91 and 154,472.99

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Solution

The fourth proportional to 287,748.37, 431,746.91 and 154,472.99 is: 231,776.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,748.37 : 431,746.91 = 154,472.99 : x
  2. Step 2: Convert to fraction form
    287,748.37/431,746.91 = 154,472.99/x
  3. Step 3: Cross multiply
    287,748.37x = 431,746.91 × 154,472.99
  4. Step 4: Simplify right side
    287,748.37x = 66,693,235,338.60
  5. Step 5: Solve for x
    x = 66,693,235,338.60/287,748.37
  6. Step 6: Final answer
    x = 231,776.24

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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.