Home / 216,928.59-299,359.17-121,436.07

Finding the Fourth Proportional to 216,928.59, 299,359.17 and 121,436.07

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Solution

The fourth proportional to 216,928.59, 299,359.17 and 121,436.07 is: 167,580.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,928.59 : 299,359.17 = 121,436.07 : x
  2. Step 2: Convert to fraction form
    216,928.59/299,359.17 = 121,436.07/x
  3. Step 3: Cross multiply
    216,928.59x = 299,359.17 × 121,436.07
  4. Step 4: Simplify right side
    216,928.59x = 36,353,001,123.26
  5. Step 5: Solve for x
    x = 36,353,001,123.26/216,928.59
  6. Step 6: Final answer
    x = 167,580.50

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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.