Home / 282,330.50-423,495.75-85,338.50

Finding the Fourth Proportional to 282,330.50, 423,495.75 and 85,338.50

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Solution

The fourth proportional to 282,330.50, 423,495.75 and 85,338.50 is: 128,007.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,330.50 : 423,495.75 = 85,338.50 : x
  2. Step 2: Convert to fraction form
    282,330.50/423,495.75 = 85,338.50/x
  3. Step 3: Cross multiply
    282,330.50x = 423,495.75 × 85,338.50
  4. Step 4: Simplify right side
    282,330.50x = 36,140,492,061.38
  5. Step 5: Solve for x
    x = 36,140,492,061.38/282,330.50
  6. Step 6: Final answer
    x = 128,007.75

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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.