Home / 307,335.32-423,964.60-205,328.16

Finding the Fourth Proportional to 307,335.32, 423,964.60 and 205,328.16

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Solution

The fourth proportional to 307,335.32, 423,964.60 and 205,328.16 is: 283,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,335.32 : 423,964.60 = 205,328.16 : x
  2. Step 2: Convert to fraction form
    307,335.32/423,964.60 = 205,328.16/x
  3. Step 3: Cross multiply
    307,335.32x = 423,964.60 × 205,328.16
  4. Step 4: Simplify right side
    307,335.32x = 87,051,871,223.14
  5. Step 5: Solve for x
    x = 87,051,871,223.14/307,335.32
  6. Step 6: Final answer
    x = 283,247.21

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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.