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Finding the Fourth Proportional to 235,280.40, 353,071.80 and 130,174.80

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Solution

The fourth proportional to 235,280.40, 353,071.80 and 130,174.80 is: 195,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,280.40 : 353,071.80 = 130,174.80 : x
  2. Step 2: Convert to fraction form
    235,280.40/353,071.80 = 130,174.80/x
  3. Step 3: Cross multiply
    235,280.40x = 353,071.80 × 130,174.80
  4. Step 4: Simplify right side
    235,280.40x = 45,961,050,950.64
  5. Step 5: Solve for x
    x = 45,961,050,950.64/235,280.40
  6. Step 6: Final answer
    x = 195,345.86

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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.