Home / 356,854.29-492,384.47-242,221.65

Finding the Fourth Proportional to 356,854.29, 492,384.47 and 242,221.65

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Solution

The fourth proportional to 356,854.29, 492,384.47 and 242,221.65 is: 334,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,854.29 : 492,384.47 = 242,221.65 : x
  2. Step 2: Convert to fraction form
    356,854.29/492,384.47 = 242,221.65/x
  3. Step 3: Cross multiply
    356,854.29x = 492,384.47 × 242,221.65
  4. Step 4: Simplify right side
    356,854.29x = 119,266,177,546.67
  5. Step 5: Solve for x
    x = 119,266,177,546.67/356,854.29
  6. Step 6: Final answer
    x = 334,215.34

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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.