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Finding the Fourth Proportional to 315,662.76, 435,485.63 and 233,074.67

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Solution

The fourth proportional to 315,662.76, 435,485.63 and 233,074.67 is: 321,547.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,662.76 : 435,485.63 = 233,074.67 : x
  2. Step 2: Convert to fraction form
    315,662.76/435,485.63 = 233,074.67/x
  3. Step 3: Cross multiply
    315,662.76x = 435,485.63 × 233,074.67
  4. Step 4: Simplify right side
    315,662.76x = 101,500,671,173.39
  5. Step 5: Solve for x
    x = 101,500,671,173.39/315,662.76
  6. Step 6: Final answer
    x = 321,547.82

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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.