Home / 289,148.48-433,639.50-99,601.20

Finding the Fourth Proportional to 289,148.48, 433,639.50 and 99,601.20

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Solution

The fourth proportional to 289,148.48, 433,639.50 and 99,601.20 is: 149,373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,148.48 : 433,639.50 = 99,601.20 : x
  2. Step 2: Convert to fraction form
    289,148.48/433,639.50 = 99,601.20/x
  3. Step 3: Cross multiply
    289,148.48x = 433,639.50 × 99,601.20
  4. Step 4: Simplify right side
    289,148.48x = 43,191,014,567.40
  5. Step 5: Solve for x
    x = 43,191,014,567.40/289,148.48
  6. Step 6: Final answer
    x = 149,373.13

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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.