Home / 219,303.41-302,688.69-142,687.34

Finding the Fourth Proportional to 219,303.41, 302,688.69 and 142,687.34

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Solution

The fourth proportional to 219,303.41, 302,688.69 and 142,687.34 is: 196,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,303.41 : 302,688.69 = 142,687.34 : x
  2. Step 2: Convert to fraction form
    219,303.41/302,688.69 = 142,687.34/x
  3. Step 3: Cross multiply
    219,303.41x = 302,688.69 × 142,687.34
  4. Step 4: Simplify right side
    219,303.41x = 43,189,842,510.74
  5. Step 5: Solve for x
    x = 43,189,842,510.74/219,303.41
  6. Step 6: Final answer
    x = 196,941.04

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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.