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Finding the Fourth Proportional to 291,624.21, 437,436.27 and 70,008.21

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Solution

The fourth proportional to 291,624.21, 437,436.27 and 70,008.21 is: 105,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,624.21 : 437,436.27 = 70,008.21 : x
  2. Step 2: Convert to fraction form
    291,624.21/437,436.27 = 70,008.21/x
  3. Step 3: Cross multiply
    291,624.21x = 437,436.27 × 70,008.21
  4. Step 4: Simplify right side
    291,624.21x = 30,624,130,251.78
  5. Step 5: Solve for x
    x = 30,624,130,251.78/291,624.21
  6. Step 6: Final answer
    x = 105,012.30

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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.