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Finding the Fourth Proportional to 315,805.57, 473,535.35 and 155,529.05

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Solution

The fourth proportional to 315,805.57, 473,535.35 and 155,529.05 is: 233,208.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,805.57 : 473,535.35 = 155,529.05 : x
  2. Step 2: Convert to fraction form
    315,805.57/473,535.35 = 155,529.05/x
  3. Step 3: Cross multiply
    315,805.57x = 473,535.35 × 155,529.05
  4. Step 4: Simplify right side
    315,805.57x = 73,648,503,515.74
  5. Step 5: Solve for x
    x = 73,648,503,515.74/315,805.57
  6. Step 6: Final answer
    x = 233,208.38

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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.