Home / 316,724.48-436,341.76-221,062.40

Finding the Fourth Proportional to 316,724.48, 436,341.76 and 221,062.40

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Solution

The fourth proportional to 316,724.48, 436,341.76 and 221,062.40 is: 304,551.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,724.48 : 436,341.76 = 221,062.40 : x
  2. Step 2: Convert to fraction form
    316,724.48/436,341.76 = 221,062.40/x
  3. Step 3: Cross multiply
    316,724.48x = 436,341.76 × 221,062.40
  4. Step 4: Simplify right side
    316,724.48x = 96,458,756,685.82
  5. Step 5: Solve for x
    x = 96,458,756,685.82/316,724.48
  6. Step 6: Final answer
    x = 304,551.00

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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.