Home / 253,130.40-349,341.12-145,735.20

Finding the Fourth Proportional to 253,130.40, 349,341.12 and 145,735.20

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Solution

The fourth proportional to 253,130.40, 349,341.12 and 145,735.20 is: 201,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,130.40 : 349,341.12 = 145,735.20 : x
  2. Step 2: Convert to fraction form
    253,130.40/349,341.12 = 145,735.20/x
  3. Step 3: Cross multiply
    253,130.40x = 349,341.12 × 145,735.20
  4. Step 4: Simplify right side
    253,130.40x = 50,911,297,991.42
  5. Step 5: Solve for x
    x = 50,911,297,991.42/253,130.40
  6. Step 6: Final answer
    x = 201,126.76

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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.