Home / 283,931.07-426,159.05-143,788.11

Finding the Fourth Proportional to 283,931.07, 426,159.05 and 143,788.11

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Solution

The fourth proportional to 283,931.07, 426,159.05 and 143,788.11 is: 215,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,931.07 : 426,159.05 = 143,788.11 : x
  2. Step 2: Convert to fraction form
    283,931.07/426,159.05 = 143,788.11/x
  3. Step 3: Cross multiply
    283,931.07x = 426,159.05 × 143,788.11
  4. Step 4: Simplify right side
    283,931.07x = 61,276,603,639.95
  5. Step 5: Solve for x
    x = 61,276,603,639.95/283,931.07
  6. Step 6: Final answer
    x = 215,815.07

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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.