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Finding the Fourth Proportional to 310,598.34, 428,640.83 and 174,675.07

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Solution

The fourth proportional to 310,598.34, 428,640.83 and 174,675.07 is: 241,060.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,598.34 : 428,640.83 = 174,675.07 : x
  2. Step 2: Convert to fraction form
    310,598.34/428,640.83 = 174,675.07/x
  3. Step 3: Cross multiply
    310,598.34x = 428,640.83 × 174,675.07
  4. Step 4: Simplify right side
    310,598.34x = 74,872,866,985.11
  5. Step 5: Solve for x
    x = 74,872,866,985.11/310,598.34
  6. Step 6: Final answer
    x = 241,060.10

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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.