Home / 307,962.64-425,281.96-291,190.16

Finding the Fourth Proportional to 307,962.64, 425,281.96 and 291,190.16

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Solution

The fourth proportional to 307,962.64, 425,281.96 and 291,190.16 is: 402,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,962.64 : 425,281.96 = 291,190.16 : x
  2. Step 2: Convert to fraction form
    307,962.64/425,281.96 = 291,190.16/x
  3. Step 3: Cross multiply
    307,962.64x = 425,281.96 × 291,190.16
  4. Step 4: Simplify right side
    307,962.64x = 123,837,921,977.51
  5. Step 5: Solve for x
    x = 123,837,921,977.51/307,962.64
  6. Step 6: Final answer
    x = 402,119.95

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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.