Home / 310,862.08-428,989.57-173,038.01

Finding the Fourth Proportional to 310,862.08, 428,989.57 and 173,038.01

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Solution

The fourth proportional to 310,862.08, 428,989.57 and 173,038.01 is: 238,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,862.08 : 428,989.57 = 173,038.01 : x
  2. Step 2: Convert to fraction form
    310,862.08/428,989.57 = 173,038.01/x
  3. Step 3: Cross multiply
    310,862.08x = 428,989.57 × 173,038.01
  4. Step 4: Simplify right side
    310,862.08x = 74,231,501,818.99
  5. Step 5: Solve for x
    x = 74,231,501,818.99/310,862.08
  6. Step 6: Final answer
    x = 238,792.40

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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.