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Finding the Fourth Proportional to 144,416.48, 216,443.28 and 69,475.28

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Solution

The fourth proportional to 144,416.48, 216,443.28 and 69,475.28 is: 104,125.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,416.48 : 216,443.28 = 69,475.28 : x
  2. Step 2: Convert to fraction form
    144,416.48/216,443.28 = 69,475.28/x
  3. Step 3: Cross multiply
    144,416.48x = 216,443.28 × 69,475.28
  4. Step 4: Simplify right side
    144,416.48x = 15,037,457,482.12
  5. Step 5: Solve for x
    x = 15,037,457,482.12/144,416.48
  6. Step 6: Final answer
    x = 104,125.63

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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.