Home / 357,905.86-493,880.72-210,707.35

Finding the Fourth Proportional to 357,905.86, 493,880.72 and 210,707.35

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Solution

The fourth proportional to 357,905.86, 493,880.72 and 210,707.35 is: 290,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,905.86 : 493,880.72 = 210,707.35 : x
  2. Step 2: Convert to fraction form
    357,905.86/493,880.72 = 210,707.35/x
  3. Step 3: Cross multiply
    357,905.86x = 493,880.72 × 210,707.35
  4. Step 4: Simplify right side
    357,905.86x = 104,064,295,439.05
  5. Step 5: Solve for x
    x = 104,064,295,439.05/357,905.86
  6. Step 6: Final answer
    x = 290,758.85

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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.