Home / 286,702.18-430,140.78-146,559.22

Finding the Fourth Proportional to 286,702.18, 430,140.78 and 146,559.22

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Solution

The fourth proportional to 286,702.18, 430,140.78 and 146,559.22 is: 219,883.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,702.18 : 430,140.78 = 146,559.22 : x
  2. Step 2: Convert to fraction form
    286,702.18/430,140.78 = 146,559.22/x
  3. Step 3: Cross multiply
    286,702.18x = 430,140.78 × 146,559.22
  4. Step 4: Simplify right side
    286,702.18x = 63,041,097,206.99
  5. Step 5: Solve for x
    x = 63,041,097,206.99/286,702.18
  6. Step 6: Final answer
    x = 219,883.56

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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.