Home / 314,971.70-472,457.55-128,117.30

Finding the Fourth Proportional to 314,971.70, 472,457.55 and 128,117.30

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Solution

The fourth proportional to 314,971.70, 472,457.55 and 128,117.30 is: 192,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,971.70 : 472,457.55 = 128,117.30 : x
  2. Step 2: Convert to fraction form
    314,971.70/472,457.55 = 128,117.30/x
  3. Step 3: Cross multiply
    314,971.70x = 472,457.55 × 128,117.30
  4. Step 4: Simplify right side
    314,971.70x = 60,529,985,670.62
  5. Step 5: Solve for x
    x = 60,529,985,670.62/314,971.70
  6. Step 6: Final answer
    x = 192,175.95

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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.