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Finding the Fourth Proportional to 360,547.61, 540,440.04 and 135,810.80

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Solution

The fourth proportional to 360,547.61, 540,440.04 and 135,810.80 is: 203,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,547.61 : 540,440.04 = 135,810.80 : x
  2. Step 2: Convert to fraction form
    360,547.61/540,440.04 = 135,810.80/x
  3. Step 3: Cross multiply
    360,547.61x = 540,440.04 × 135,810.80
  4. Step 4: Simplify right side
    360,547.61x = 73,397,591,482.23
  5. Step 5: Solve for x
    x = 73,397,591,482.23/360,547.61
  6. Step 6: Final answer
    x = 203,572.54

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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.