Home / 265,526.02-398,328.32-85,551.12

Finding the Fourth Proportional to 265,526.02, 398,328.32 and 85,551.12

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Solution

The fourth proportional to 265,526.02, 398,328.32 and 85,551.12 is: 128,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,526.02 : 398,328.32 = 85,551.12 : x
  2. Step 2: Convert to fraction form
    265,526.02/398,328.32 = 85,551.12/x
  3. Step 3: Cross multiply
    265,526.02x = 398,328.32 × 85,551.12
  4. Step 4: Simplify right side
    265,526.02x = 34,077,433,903.72
  5. Step 5: Solve for x
    x = 34,077,433,903.72/265,526.02
  6. Step 6: Final answer
    x = 128,339.34

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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.