Home / 210,317.45-290,271.40-133,756.72

Finding the Fourth Proportional to 210,317.45, 290,271.40 and 133,756.72

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Solution

The fourth proportional to 210,317.45, 290,271.40 and 133,756.72 is: 184,605.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,317.45 : 290,271.40 = 133,756.72 : x
  2. Step 2: Convert to fraction form
    210,317.45/290,271.40 = 133,756.72/x
  3. Step 3: Cross multiply
    210,317.45x = 290,271.40 × 133,756.72
  4. Step 4: Simplify right side
    210,317.45x = 38,825,749,313.74
  5. Step 5: Solve for x
    x = 38,825,749,313.74/210,317.45
  6. Step 6: Final answer
    x = 184,605.46

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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.