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Finding the Fourth Proportional to 345,026.72, 473,593 and 306,457.76

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Solution

The fourth proportional to 345,026.72, 473,593 and 306,457.76 is: 420,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,026.72 : 473,593 = 306,457.76 : x
  2. Step 2: Convert to fraction form
    345,026.72/473,593 = 306,457.76/x
  3. Step 3: Cross multiply
    345,026.72x = 473,593 × 306,457.76
  4. Step 4: Simplify right side
    345,026.72x = 145,136,249,931.68
  5. Step 5: Solve for x
    x = 145,136,249,931.68/345,026.72
  6. Step 6: Final answer
    x = 420,652.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.