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Finding the Fourth Proportional to 376,453.84, 519,547.72 and 215,323.60

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Solution

The fourth proportional to 376,453.84, 519,547.72 and 215,323.60 is: 297,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,453.84 : 519,547.72 = 215,323.60 : x
  2. Step 2: Convert to fraction form
    376,453.84/519,547.72 = 215,323.60/x
  3. Step 3: Cross multiply
    376,453.84x = 519,547.72 × 215,323.60
  4. Step 4: Simplify right side
    376,453.84x = 111,870,885,442.19
  5. Step 5: Solve for x
    x = 111,870,885,442.19/376,453.84
  6. Step 6: Final answer
    x = 297,170.26

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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.