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Finding the Fourth Proportional to 225,340.14, 310,609.98 and 152,720.40

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Solution

The fourth proportional to 225,340.14, 310,609.98 and 152,720.40 is: 210,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,340.14 : 310,609.98 = 152,720.40 : x
  2. Step 2: Convert to fraction form
    225,340.14/310,609.98 = 152,720.40/x
  3. Step 3: Cross multiply
    225,340.14x = 310,609.98 × 152,720.40
  4. Step 4: Simplify right side
    225,340.14x = 47,436,480,389.59
  5. Step 5: Solve for x
    x = 47,436,480,389.59/225,340.14
  6. Step 6: Final answer
    x = 210,510.57

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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.