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Finding the Fourth Proportional to 310,353.79, 464,884.83 and 299,647.21

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Solution

The fourth proportional to 310,353.79, 464,884.83 and 299,647.21 is: 448,847.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,353.79 : 464,884.83 = 299,647.21 : x
  2. Step 2: Convert to fraction form
    310,353.79/464,884.83 = 299,647.21/x
  3. Step 3: Cross multiply
    310,353.79x = 464,884.83 × 299,647.21
  4. Step 4: Simplify right side
    310,353.79x = 139,301,442,280.82
  5. Step 5: Solve for x
    x = 139,301,442,280.82/310,353.79
  6. Step 6: Final answer
    x = 448,847.24

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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.