Home / 370,511.48-511,325.74-209,373.32

Finding the Fourth Proportional to 370,511.48, 511,325.74 and 209,373.32

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Solution

The fourth proportional to 370,511.48, 511,325.74 and 209,373.32 is: 288,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,511.48 : 511,325.74 = 209,373.32 : x
  2. Step 2: Convert to fraction form
    370,511.48/511,325.74 = 209,373.32/x
  3. Step 3: Cross multiply
    370,511.48x = 511,325.74 × 209,373.32
  4. Step 4: Simplify right side
    370,511.48x = 107,057,967,785.26
  5. Step 5: Solve for x
    x = 107,057,967,785.26/370,511.48
  6. Step 6: Final answer
    x = 288,946.43

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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.