Home / 338,531.02-507,798.34-101,872.10

Finding the Fourth Proportional to 338,531.02, 507,798.34 and 101,872.10

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Solution

The fourth proportional to 338,531.02, 507,798.34 and 101,872.10 is: 152,808.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,531.02 : 507,798.34 = 101,872.10 : x
  2. Step 2: Convert to fraction form
    338,531.02/507,798.34 = 101,872.10/x
  3. Step 3: Cross multiply
    338,531.02x = 507,798.34 × 101,872.10
  4. Step 4: Simplify right side
    338,531.02x = 51,730,483,272.31
  5. Step 5: Solve for x
    x = 51,730,483,272.31/338,531.02
  6. Step 6: Final answer
    x = 152,808.69

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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.