Home / 400,328.04-552,820.02-257,337.12

Finding the Fourth Proportional to 400,328.04, 552,820.02 and 257,337.12

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Solution

The fourth proportional to 400,328.04, 552,820.02 and 257,337.12 is: 355,361.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,328.04 : 552,820.02 = 257,337.12 : x
  2. Step 2: Convert to fraction form
    400,328.04/552,820.02 = 257,337.12/x
  3. Step 3: Cross multiply
    400,328.04x = 552,820.02 × 257,337.12
  4. Step 4: Simplify right side
    400,328.04x = 142,261,111,825.14
  5. Step 5: Solve for x
    x = 142,261,111,825.14/400,328.04
  6. Step 6: Final answer
    x = 355,361.35

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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.