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Finding the Fourth Proportional to 315,457.20, 473,477.40 and 157,798.80

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Solution

The fourth proportional to 315,457.20, 473,477.40 and 157,798.80 is: 236,844.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,457.20 : 473,477.40 = 157,798.80 : x
  2. Step 2: Convert to fraction form
    315,457.20/473,477.40 = 157,798.80/x
  3. Step 3: Cross multiply
    315,457.20x = 473,477.40 × 157,798.80
  4. Step 4: Simplify right side
    315,457.20x = 74,714,165,547.12
  5. Step 5: Solve for x
    x = 74,714,165,547.12/315,457.20
  6. Step 6: Final answer
    x = 236,844.06

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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.