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Finding the Fourth Proportional to 153,779.40, 230,150.70 and 141,337.80

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Solution

The fourth proportional to 153,779.40, 230,150.70 and 141,337.80 is: 211,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,779.40 : 230,150.70 = 141,337.80 : x
  2. Step 2: Convert to fraction form
    153,779.40/230,150.70 = 141,337.80/x
  3. Step 3: Cross multiply
    153,779.40x = 230,150.70 × 141,337.80
  4. Step 4: Simplify right side
    153,779.40x = 32,528,993,606.46
  5. Step 5: Solve for x
    x = 32,528,993,606.46/153,779.40
  6. Step 6: Final answer
    x = 211,530.24

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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.