Home / 305,598.04-458,395.86-172,417.72

Finding the Fourth Proportional to 305,598.04, 458,395.86 and 172,417.72

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Solution

The fourth proportional to 305,598.04, 458,395.86 and 172,417.72 is: 258,625.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,598.04 : 458,395.86 = 172,417.72 : x
  2. Step 2: Convert to fraction form
    305,598.04/458,395.86 = 172,417.72/x
  3. Step 3: Cross multiply
    305,598.04x = 458,395.86 × 172,417.72
  4. Step 4: Simplify right side
    305,598.04x = 79,035,569,038.64
  5. Step 5: Solve for x
    x = 79,035,569,038.64/305,598.04
  6. Step 6: Final answer
    x = 258,625.90

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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.