Home / 291,931.13-437,896.70-70,315.13

Finding the Fourth Proportional to 291,931.13, 437,896.70 and 70,315.13

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Solution

The fourth proportional to 291,931.13, 437,896.70 and 70,315.13 is: 105,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,931.13 : 437,896.70 = 70,315.13 : x
  2. Step 2: Convert to fraction form
    291,931.13/437,896.70 = 70,315.13/x
  3. Step 3: Cross multiply
    291,931.13x = 437,896.70 × 70,315.13
  4. Step 4: Simplify right side
    291,931.13x = 30,790,763,387.07
  5. Step 5: Solve for x
    x = 30,790,763,387.07/291,931.13
  6. Step 6: Final answer
    x = 105,472.70

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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.