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Finding the Fourth Proportional to 160,210.40, 240,315.60 and 77,266.40

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Solution

The fourth proportional to 160,210.40, 240,315.60 and 77,266.40 is: 115,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,210.40 : 240,315.60 = 77,266.40 : x
  2. Step 2: Convert to fraction form
    160,210.40/240,315.60 = 77,266.40/x
  3. Step 3: Cross multiply
    160,210.40x = 240,315.60 × 77,266.40
  4. Step 4: Simplify right side
    160,210.40x = 18,568,321,275.84
  5. Step 5: Solve for x
    x = 18,568,321,275.84/160,210.40
  6. Step 6: Final answer
    x = 115,899.60

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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.