Home / 289,784.48-399,899.04-162,457.40

Finding the Fourth Proportional to 289,784.48, 399,899.04 and 162,457.40

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Solution

The fourth proportional to 289,784.48, 399,899.04 and 162,457.40 is: 224,189.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,784.48 : 399,899.04 = 162,457.40 : x
  2. Step 2: Convert to fraction form
    289,784.48/399,899.04 = 162,457.40/x
  3. Step 3: Cross multiply
    289,784.48x = 399,899.04 × 162,457.40
  4. Step 4: Simplify right side
    289,784.48x = 64,966,558,300.90
  5. Step 5: Solve for x
    x = 64,966,558,300.90/289,784.48
  6. Step 6: Final answer
    x = 224,189.23

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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.