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Finding the Fourth Proportional to 350,457.32, 525,714.06 and 139,979.72

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Solution

The fourth proportional to 350,457.32, 525,714.06 and 139,979.72 is: 209,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,457.32 : 525,714.06 = 139,979.72 : x
  2. Step 2: Convert to fraction form
    350,457.32/525,714.06 = 139,979.72/x
  3. Step 3: Cross multiply
    350,457.32x = 525,714.06 × 139,979.72
  4. Step 4: Simplify right side
    350,457.32x = 73,589,306,918.86
  5. Step 5: Solve for x
    x = 73,589,306,918.86/350,457.32
  6. Step 6: Final answer
    x = 209,980.80

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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.