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Finding the Fourth Proportional to 312,503.18, 468,130.41 and 143,792.19

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Solution

The fourth proportional to 312,503.18, 468,130.41 and 143,792.19 is: 215,401.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,503.18 : 468,130.41 = 143,792.19 : x
  2. Step 2: Convert to fraction form
    312,503.18/468,130.41 = 143,792.19/x
  3. Step 3: Cross multiply
    312,503.18x = 468,130.41 × 143,792.19
  4. Step 4: Simplify right side
    312,503.18x = 67,313,496,859.50
  5. Step 5: Solve for x
    x = 67,313,496,859.50/312,503.18
  6. Step 6: Final answer
    x = 215,401.00

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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.