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Finding the Fourth Proportional to 340,424.76, 469,786.86 and 189,527.16

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Solution

The fourth proportional to 340,424.76, 469,786.86 and 189,527.16 is: 261,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,424.76 : 469,786.86 = 189,527.16 : x
  2. Step 2: Convert to fraction form
    340,424.76/469,786.86 = 189,527.16/x
  3. Step 3: Cross multiply
    340,424.76x = 469,786.86 × 189,527.16
  4. Step 4: Simplify right side
    340,424.76x = 89,037,369,381.12
  5. Step 5: Solve for x
    x = 89,037,369,381.12/340,424.76
  6. Step 6: Final answer
    x = 261,547.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.